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A271436
as a simple table
n
a(n)
1
0
2
0
3
12
4
1629
5
153984
6
16992846
7
2653292322
8
639869193777
9
247683857110080
[0,0,12,1629,153984,16992846,2653292322, 639869193777,247683857110080]
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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)
